- add a new IToolChain property "cdt.needScannerRefresh" that is
set if scanner info needs to be refreshed
- for a Container build, turn the property on in ContainerGCCToolChain
startBuildProcess() if the Container headers for the toolchain's
have been deleted
- in CBuildConfiguration processLine(), look for the toolchain
property when looking to see if scannerinfo should be calculated
- in CBuildConfiguration, turn the toolchain property off in
shutdown()
Change-Id: I67a3537d1e2967dc15b66a1c37abda1ae8f78bff
5f449f8a4c